The new models, HPG-R, add low-speed ratios from 3:1 through 10:1 including all integer ratios in between. HPGR employs helical gearing for improved noise reduction and higher torque capacity. Ideal for a variety of machinery and equipment designs, these new models enhance the already successful HPG series.

A special design of the HPG internal gear allows a preload of the gear (on the order of microns) and enables it to slightly deform elastically thus maintaining low backlash for the life of the gearhead, without any need for adjustment. This preload not only minimizes backlash but also compensates for interference between meshing parts. The result is low backlash for the life of the gear, without any "backlash creep".

Like all Harmonic Planetary® gearheads, the HPG-Helical gears feature Quick Connect® coupling for easy mounting to any servo motor. They are also available with flange output, shaft output without key and shaft output with key and center tapped hole.

Harmonic Drive LLC has a dedicated website for its Harmonic Planetary® and Harmonic Drive® Quick Connect™ gearheads (HPN, HPG, HPGP, CSF-GH, CSG-GH, HPF and HPG-U1). The website offers users a quick and easy way to choose the best Harmonic Drive LLC product for their application. Developed with the design engineer in mind, the website features a robust product selector tool, PDF and DXF CAD drawings, as well as downloadable 3-D solid models. The Product Selector Tool enables the design engineer to quickly filter through Harmonic Drive product specifications to find the right gearhead to connect to their servomotor.

About Harmonic Drive LLC Harmonic Drive, LLC engineers and manufactures precision servo actuators, gearheads and gear component sets. We work closely with both Fortune 500 and companies of all sizes to understand their application requirements and provide a standard or custom-engineered solution to enable the success of their design project. The majority of the products sold by Harmonic Drive, LLC are proudly made at our manufacturing facility in Peabody, Massachusetts. Harmonic Drive Group Companies in, Japan (Harmonic Drive Systems, Inc.) and Germany (Harmonic Drive AG) provide additional products.

With over 50 years of experience, our expert engineering and production teams develop enabling technologies and products to meet the needs of an evolving motion control market. We are very proud of our outstanding company history. Our high-precision, zero-backlash Harmonic Drive® gears and Harmonic Planetary® gears have, and continue to play critical roles in robotics, spaceflight applications, semiconductor manufacturing equipment, factory automation equipment, medical diagnostics and surgical robotics. More information can be found by visiting our website at
www.harmonicdrive.net